This is a 600/700 - 19/20 tube with a TR150 Offset rubber stem. These tubes are essential replacement auto parts for classic cars and available in many popular classic sizes. Recommended application is for Radial tires and the recommended tire fitment is for a 600/700R19/20 tire. Fits 600-700 width, 19-20 inch diameter tires. This tube has a TR150 rubber stem and the valve stem location is Offset. TR150 stem is flexible rubber stem 3 5/8 inch tall with 1/2 inch diameter at the base. Actual item may differ from photo. Coker Tire Company features a huge selection of classics auto parts including tires, tubes and wheels. Hartford brand tubes are built to meet our specifications using premium grade materials. They are designed specifically for their applications, to provide a high quality inner tube solution and reliable service life. These are excellent quality tubes, available in a wide range of sizes for collector and specialty vehicle applications.